REST-style JSON API

Bring micro-utilities into your workflow.

A lightweight PHP API for formatting, encoding, hashing and generation tasks. Authentication uses an X-API-Key header.

Create free API keyv1 stable

Quick start

Send a JSON POST request to the endpoint with a tool name and input.

POST https://freedevtools.whitecoder.lk/api/v1Content-Type: application/json
X-API-Key: wc_live_your_key

{
  "tool": "json_format",
  "input": "{\"name\":\"FreeDevTools\"}"
}

Authentication

Pass your private API key using the X-API-Key request header. Keys are stored as SHA-256 hashes and cannot be recovered after creation.

Available tools

json_formatPretty-print and validate JSON

json_minifyMinify valid JSON

base64_encodeEncode UTF-8 text

base64_decodeDecode Base64 text

url_encodeURL-encode a value

url_decodeDecode a URL value

hashGenerate MD5/SHA hash; add algorithm

bcryptGenerate password-safe bcrypt hash

uuidGenerate UUID v4 values; add count

timestampConvert Unix timestamp or date

jwt_decodeDecode JWT header and payload

slugGenerate a URL slug

html_entitiesEncode or decode HTML entities

utmBuild a campaign URL

meta_tagsGenerate SEO meta tags

code_minifyBasic HTML/CSS/JS minification

markdownConvert safe Markdown to HTML

Examples

cURL

curl -X POST "https://freedevtools.whitecoder.lk/api/v1" \
  -H "X-API-Key: wc_live_..." \
  -H "Content-Type: application/json" \
  -d '{"tool":"hash","algorithm":"sha256","input":"hello"}'

JavaScript

const response = await fetch("https://freedevtools.whitecoder.lk/api/v1", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "X-API-Key": "wc_live_..."
  },
  body: JSON.stringify({
    tool: "uuid",
    count: 5
  })
});

const data = await response.json();

Errors and rate limits

Responses always include an ok boolean. HTTP 401 means the key is missing or invalid, 429 means the daily quota is exhausted, and 422 indicates invalid tool input.

{
  "ok": false,
  "error": {
    "code": "invalid_input",
    "message": "Input must be valid JSON."
  }
}